Schneider Electric ATV312H075N4 Altivar 312 0.75 kW 380-500 V

ATV312H075N4 the 0.75 kW Altivar 312 for small motors

The ATV312H075N4 is a Schneider Electric product listed in the datasheet as: variable speed drive, ATV312, 1 HP, 2.4 kVA, 41 W, 380 to 500 V 3 phase supply. This is the 0.75 kW (1 hp) member of the Altivar 312 family, the size used for the smallest machine motors and fans. It keeps the same control terminals, communication and filter as the larger members, so the main difference is the power stage. Seven Star LLC supplies the ATV312H075N4 in Oman and the GCC as an independent supplier based in Muscat.

Decoding the reference: ATV312 is the range, H075 stands for 0.75 kW, and N4 is the 380 to 500 V three-phase supply. The datasheet title lists 1 hp, 2.4 kVA and 41 W losses.

Technical specifications of the ATV312H075N4

Rating differences of the ATV312H075N4

Rated motor power: 0.75 kW. Supply voltage: 380 to 500 V (tolerance -15 % / +10 %). Supply voltage limits: 323 to 550 V. Network frequency: 47.5 to 63 Hz. Supply frequency: 50 to 60 Hz (tolerance -5 % / +5 %). Motor power ratings: 0.75 kW. Discrete inputs: 6. Discrete outputs: 2. Analogue inputs: 3. Analogue outputs: 1. Analogue input types: AI1 configurable voltage 0 to 10 V 30 V max 30000 Ohm; AI2 configurable voltage ± 10 V 30 V max 30000 Ohm. Output type: Configurable relay logic R1A, R1B, R1C 1 NO + 1 NC – 100000 cycles; Configurable relay logic R2A, R2B NC – 100000 cycles. Communication protocols: CANopen; Modbus. Output voltage: <= power supply voltage.

The nominal output current of the 0.75 kW unit is 2.3 A at 4 kHz with a short overload to 3.5 A for 60 seconds, against 4.1 A and 6.2 A for the 1.5 kW size. Line current is 3.6 A at 380 V and 2.7 A at 500 V, and apparent power is 2.4 kVA.

Everything else follows the family: integrated EMC filter, Modbus and CANopen on one RJ45, six logic inputs and two relay outputs. Because the power stage is small, losses are only 41 W, which helps in tight cabinets in warm rooms.

Using the ATV312H075N4 with small motors

The drive suits 0.75 kW four-pole motors and also smaller motors where soft starting and speed control are needed. If the motor is much smaller than the drive, set the motor thermal protection from the actual nameplate current and not from the drive rating.

Compared with the ATV312HU15N4, this unit is half the size and current, and users often buy both as a pair for a small machine with two drives of different ratings.

The datasheet downloaded for this page carries lifecycle notices: Discontinued on: Jan 23, 2021. For a plant that already runs this reference that makes the ATV312H075N4 a spare-and-replacement item, and it is worth fixing the stock level and the long-term successor plan at the same time. We can discuss compatible alternatives once we know the installation.

Selection checklist for the ATV312H075N4

• Motor: 0.75 kW / 1 hp with nameplate current near 2 A.
• Supply: three phase 380 to 500 V.
• Environment: IP20 with IP21 or IP31 options noted for the upper and terminal areas.
• Network: Modbus or CANopen node address plan.
• Control: how many logic inputs and relay outputs the machine really needs.
• Lifecycle: discontinued on the datasheet; plan for spares or replacement.

Commissioning the ATV312H075N4

Set the motor data first, then the control mode and ramps. A common cause of nuisance trips on small drives is a cable that is too long or an unscreened run, so keep the motor cable short and screened.

Record the final configuration, because a stored copy makes any later swap of this small drive a five-minute job. Write the parameters and the Modbus address on a label inside the cabinet door.

Typical applications of the ATV312H075N4 in Oman and the GCC

In Oman and the GCC the 0.75 kW size is the typical choice for small circulation pumps, extraction fans and light-duty conveyors in food and packaging plants. The unit is also common on machine tools imported with the drive pre-fitted.

Dimensions, environment and approvals of the ATV312H075N4

For the ATV312H075N4, plan the mounting space from the datasheet: 107 mm (W) x 143 mm (H) x 152 mm (D). The ATV312H075N4 weighs 1.8 kg. Mounting, derating and enclosure choices follow the environmental data below, which should be compared with the actual panel temperature and the dust and humidity of the site in Oman and the GCC.

Ambient temperature limits in the datasheet: -10 to 50 °C without derating with protective cover on top of the drive. Relative humidity: 5 to 95 % without condensation IEC 60068-2-3; 5 to 95 % without dripping water IEC 60068-2-3. Ingress protection: IP20 on upper part without cover plate; IP21 on connection terminals; IP31 on upper part; IP41 on upper part. Operating altitude: <= 1000 m without derating; 1000 to 3000 m with current derating 1 % per 100 m. Vibration resistance: 1 gn (f= 13 to 150 Hz) conforming to EN/IEC 60068-2-6; 1.5 mm (f= 3 to 13 Hz) conforming to EN/IEC 60068-2-6. Shock resistance: 15 gn 11 ms EN/IEC 60068-2-27. Standards listed: IEC 61800-3; IEC 61800-5-1. Certifications listed for this reference: NOM; C-tick; CSA; UL; DNV; GOST.

Information to send with an RFQ for the ATV312H075N4

• Full reference and quantity required
• Existing equipment, panel or rack it must fit
• Supply voltage, load or signal details of the application
• Required delivery location and timing
• Whether a spare, a replacement or a new installation

Documents and quotation

A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.

Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.